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发明名称
Drop pit apparatus
摘要
申请公布号
US1849972(A)
申请公布日期
1932.03.15
申请号
US19310553691
申请日期
1931.07.28
申请人
MANNING, MAXWELL & MOORE, INC.
发明人
BLAKE FRANK W.
分类号
B61K5/00
主分类号
B61K5/00
代理机构
代理人
主权项
地址
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